Thomas William "Tommy" Heinsohn is a retired American professional basketball player. He has been associated with the Boston Celtics of the National Basketball Association for six decades as a player, coach and broadcaster. He played for the Celtics from 1956 to 1965, and also coached the team from 1969 to 1978. He has been granted Hall of Fame Status for his success as a player. He helped form the NBA players union. He is the only person to have the distinction of being involved in an official team capacity in each of the Celtics' 17 championships, as well as each of their 21 NBA Finals appearances. He is currently the color commentator on the Celtics' television broadcasts on CSN New England.